Consequences of Repeated Defoliation on Belowground Bud Banks of Carex brevicuspis (Cyperaceae) in the Dongting Lake Wetlands, China

Chen, Xinsheng; Deng, Zhong-Shan; Xie, Yonghong; Li, Feng; Hou, Zhipeng; Wu, Chao

doi:10.3389/fpls.2016.01119

Cited by 7 publications

(10 citation statements)

References 44 publications

(75 reference statements)

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“…C. brevicuspis plants flower and fruit from April to May in the Dongting Lake wetlands. However, seedlings are scarce in the field because plants recruit mainly by producing vegetative ramets from rhizomes ( Chen et al, 2015 , 2016 ).…”

Section: Methodsmentioning

confidence: 99%

Concurrent Effects of Sediment Accretion and Nutrient Availability on the Clonal Growth Strategy of Carex brevicuspis-A Wetland Sedge That Produces Both Spreading and Clumping Ramets

et al. 2017

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Clonal plants producing both clumping and spreading ramets can adjust their growth forms in response to resource heterogeneity or environmental stress. They might produce clumping ramets to retain favorable patches, or produce spreading ramets to escape from stress-affected patches. This study aimed to investigate the rarely reported concurrent effects of sediment accretion and nutrient enrichment, which often occur simultaneously in lacustrine wetlands, on the vegetative propagation and clonal growth forms of Carex brevicuspis C.B. Clarke by conducting a factorial experiment of sediment burial and nutrient addition. Biomass accumulation, new ramet and rhizome numbers, and ramet length of C. brevicuspis were not affected at moderate burial, but were significantly lower after deep burial. Similarly, nutrient enrichment increased the growth and vegetative propagation of C. brevicuspis up to moderate sediment burial, but not after deep burial. Sediment accretion increased the proportion of spreading ramets produced by C. brevicuspis, whereas nutrient addition had no effect on the clonal growth forms. Our results indicated that the plasticity of clonal growth forms is an effective strategy used by plants to acclimate to moderate sediment accretion. Nutrient enrichment did not influence the clonal growth forms of C. brevicuspis and could not facilitate its acclimation to heavy sedimentation condition.

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Section: Methodsmentioning

confidence: 99%

Concurrent Effects of Sediment Accretion and Nutrient Availability on the Clonal Growth Strategy of Carex brevicuspis-A Wetland Sedge That Produces Both Spreading and Clumping Ramets

et al. 2017

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“…For perennial grasses, the tiller nodes on the earth's surface are important for VR, and the number of buds at the tiller node can be used to measure the renewal capacity of VR (Benson et al, 2004;Ott and Hartnett, 2015b). However, the bud produced by VR will grow further and yield juvenile tiller and tiller in the growing season (Fidelis et al, 2014;Chen et al, 2016). Therefore, the number of juvenile tillers and tillers also indicates the renewal capacity of VR.…”

Section: Renewal Capacity Of Vegetative Reproduction and Grazing Tolementioning

confidence: 99%

“…The results indicated that the main function of the clonal population is the production of tillers when there is no interference from herbivores. However, the main function of the clonal population is to produce more buds to ensure the potential vegetative reproduction of the population, which is important for the resistance to the interference of herbivores and the productivity recovery after the interference (Dalgleish and Hartnett, 2009;Chen et al, 2016). The change in life history pattern of vegetative propagation components after simulated grazing disturbance indicates the change in the strategies of vegetative reproduction.…”

Section: Changes In the Life History Pattern Of Vegetative Reproductimentioning

confidence: 99%

“…The maintenance of belowground bud banks in grassland ecosystems enables plants to survive adverse environments, such as grazing disturbance and drought (Dalgleish and Hartnett, 2009;VanderWeide and Hartnett, 2015). Therefore, the promotion of bud sprouting after grazing is important for plant compensatory growth, and the output of tiller with multi-leaves from the bud finally promotes the compensatory growth of plants (Chen et al, 2016;Nakahara et al, 2018). Therefore, the VR of the population and the turnover rate of modules after grazing disturbances, especially the turnover rate of tiller from bud, were considered the major internal mechanisms of plant compensatory growth (Strauss and Agrawal, 1999;Tiffin, 2000).…”

Section: Mechanism Of Compensatory Tilleringmentioning

confidence: 99%

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The Compensatory Tillering in the Forage Grass Hordeum brevisubulatum After Simulated Grazing of Different Severity

Yuan

Yang

2020

Front. Plant Sci.

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The response of compensatory growth is an important adaptive strategy for plants to grazing. However, most previous studies on compensatory growth of plants focused on the compensation of the biomass or the number of sexual reproductive offspring and neglected the compensatory growth of vegetative reproduction (VR). This is important not only for plant compensatory growth studies, but also for theoretical and practical studies of grassland production. The clonal tussock grass Hordeum brevisubulatum was selected as the research object. Four different clipping severities (unclipping and clipping stubble at heights of 15, 10, and 5 cm) at the jointing stage and flowering stage were implemented to study the effect of simulated grazing. To explore the effect of recovery growth time on plant growth after simulated grazing, three sampling times were used at different recovery times after simulated grazing (1, 3, and 7 weeks). We found that light and moderate grazing severity significantly increased the number of vegetative reproduction modules, the promotion of simulated grazing on the number of vegetative reproduction modules was higher in the jointing stage than the flowering stage, and the increase in simulated grazing severity decreased with prolonged recovery growth time. The number of tillers significantly decreased with the increase in simulated grazing in both the jointing and flowering stages at 1 week after damage, and the decreasing effect weakened with the prolonged recovery growth time. The bud number mainly showed over-compensation, the juvenile tiller number showed complete compensation, and the tiller number showed under-compensation at 1 and 3 weeks after recovery growth. The number of tillers showed complete compensation under different grazing severities in the jointing stage, while it showed under-compensation in the flowering stage at 7 weeks after recovery growth. Our results indicated that different grazing severities in the jointing stage could promote the output of tillers with matter production capacity from vegetative reproduction modules, as well as improve the capability of compensatory growth. Therefore, in plant production, there will be a sustainable development effect on the renewal and productivity of the H. brevisubulatum population, resulting in different grazing severities in the jointing stage.

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“…For perennial grasses, herbivore foraging would promote the vegetative reproduction of plants and then cause plants to show over-compensation growth [9,10]. Many studies have shown that the response of vegetative reproductive capacity to herbivore foraging plays a decisive role in the compensatory growth of grassland plants, especially for perennial grasses in grassland ecosystems [9,10,11,12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Simulated Herbivory on the Vegetative Reproduction and Compensatory Growth of Hordeum brevisubulatum at Different Ontogenic Stages

Yuan

Wang

Yang

2019

IJERPH

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The response of plant vegetative reproduction and compensatory growth to herbivory has been widely discussed in biological and ecological research. Most previous research has supported the idea that both vegetative reproduction and compensatory growth are affected by their ontogenic stage. However, in many studies, the effects of foraging at different ontogenic stages was often confounded with the effects of foraging at different phenological periods for perennials. Our experiment was conducted in a natural meadow with a perennial grass, Hordeum brevisubulatum, and four ontogenic stages were chosen as our experimental objects. Three different clipping intensities during three phenological periods were implemented to explore the effects of simulating animal foraging on vegetative reproduction and compensatory plant growth. The results indicated that there were significant effects of ontogenic stage, phenological period, and clipping intensity on vegetative reproduction and compensatory growth. Moderate clipping intensities significantly increased the number of vegetative tillers, the total number of juvenile tillers and buds, and the aboveground biomass at early phenological periods for individuals at early ontogenic stages. Our results suggested that moderate clipping intensities could induce only an over-compensation response in perennial grasses at both the early ontogenic stage and phenological period, and the ability of compensatory growth gradually decreased with the progression of the ontogenic stage. This is of great significance to the primary production of grasslands subjected to herbivory.

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Consequences of Repeated Defoliation on Belowground Bud Banks of Carex brevicuspis (Cyperaceae) in the Dongting Lake Wetlands, China

Cited by 7 publications

References 44 publications

Concurrent Effects of Sediment Accretion and Nutrient Availability on the Clonal Growth Strategy of Carex brevicuspis-A Wetland Sedge That Produces Both Spreading and Clumping Ramets

Concurrent Effects of Sediment Accretion and Nutrient Availability on the Clonal Growth Strategy of Carex brevicuspis-A Wetland Sedge That Produces Both Spreading and Clumping Ramets

The Compensatory Tillering in the Forage Grass Hordeum brevisubulatum After Simulated Grazing of Different Severity

Effects of Simulated Herbivory on the Vegetative Reproduction and Compensatory Growth of Hordeum brevisubulatum at Different Ontogenic Stages

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